I have the tendency to make my projects more difficult. I just replaced the old KYB rear shocks with Bilstein shocks. (I'm using Viking coil-overs in the front)

I wanted to replace the cheap 50 year old 5/16" bolts with some ARP 12 point 3/8" bolts I had kicking around.

Laying on the floor, working around 3" tail pipes, I had to drill the chassis holes bigger. The ARP bolts I had were too long so I had to poke them UP through the shock and catch a washer and nut above. Of course, they're prevailing torque nuts so they were difficult to turn for their entire length

Currently I'm struggling with a frozen lower arm bolt. I think it's seized to the sleeve inside the rubber. Muffler is in the way so I can't hit it directly so I'm using a punch from the side. If I had an air chisel I think it would make short work of it but I don't have one. Other options are cutting the bolt and replacing it or removing the muffler to hit it directly with a bfh.